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Four point contact ball bearing

The four-point contact ball bearing is the kind of bearing which can be separable. The 0000 type has a double semi-inner ring, and the OJ0000 type has a double semi-outer ring, and the contact angle is 35°. When there is pure radial load or no load, the steel ball and the ring are in four-point contact; under the action of pure axial load, the steel ball and the ring are in two-point contact and can withstand bidirectional axial load. This type of bearing can also withstand moment loads and combine the functions of single row and double row angular contact ball bearings. This kind of bearing can only guarantee normal operation when two-points contact is formed.

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Outer dimension (mm)

Rated Load (KN)

Action point (mm)

Bearing Model

Weight (kg)

d

D

B

rmin

Cr

Cor

a

QJ type

QJF type

 

100

180

34

2.1

195

215

98

QJ220

QJF220

4

200

360

70

4

535

850

280

QJ1240

QJF1240

32.5

260

480

90

5

815

1535

370

QJ1252

QJF1252

78

300

540

98

5

940

1915

420

QJ1260

QJF1260

105

360

540

82

5

750

1645

315

QJ1072

QJF1072

70.5

400

600

90

5

870

2030

350

QJ1080

QJF1080

95.5

420

620

90

5

885

2115

364

QJ1084

QJF1084

99.5

460

680

100

6

1010

2550

399

QJ1092

QJF1092

130

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